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28 lis 2023 · Just like the arm, the forearm is divided into two compartments by deep fascia; the interosseous membrane, and the fibrous intermuscular septa. This creates an anterior compartment that contains the flexor muscles, and a posterior one that contains the extensor muscles. Extensors of the forearm
Extensor digitorum communis (EDC) tendons. EDC tendons straighten the index, middle, ring and small fingers. A common muscle belly is shared by all the fingers. The tendons travel down the forearm through a tough band of tissue on top of the wrist.
11 wrz 2023 · Extension of the forearm at the elbow joint is the increase of the angle at the elbow to bring the forearm back to the anatomical position from a flexed position. There is one muscle involved in extension, the triceps brachii muscle. It is the only muscle in the posterior compartment of the arm.
2 lis 2023 · Epicondylitis (Tennis elbow or Golfer’s elbow) Most of the flexor and extensor muscles in the forearm have a common tendinous origin. The flexor muscles originate from the medial epicondyle, and the extensor muscles from the lateral.
The lateral epicondyle is the bony ridge structure on the lateral aspect of the elbow joint. It can be palpated lateral to the olecranon process. The attachment point for the common extensor tendon is located distal to the lateral epicondyle. Annular ligament: Anterior margin of the lesser sigmoid notch Posterior margin of the lesser sigmoid notch
25 sty 2021 · 29 The Extensor Tendons. 29.1 Introduction. If one looks at the development of the extensor mechanism from amphibian to mammal and from monkey to man and also observes the difference between the extensors of our feet and our hands, one realizes that the function of this system in the hand has been continually changing throughout evolution.
21 gru 2022 · The extensor tendon compartments of the wrist are six tunnels which transmit the long extensor tendons from the forearm into the hand. They are located on the posterior aspect of the wrist. Each tunnel is lined internally by a synovial sheath and separated from one another by fibrous septa.
